Gap

Gap (pronounced gap)

(1) A break or opening, as in a fence, wall, or military line; breach; an opening that implies a breach or defect (vacancy, deficit, absence, or lack).

(2) An empty space or interval; interruption in continuity; hiatus.

(3) A wide divergence or difference; disparity

(4) A difference or disparity in attitudes, perceptions, character, or development, or a lack of confidence or understanding, perceived as creating a problem.

(5) A deep, sloping ravine or cleft through a mountain ridge.

(6) In regional use (in most of the English-speaking world and especially prominent in the US), a mountain pass, gorge, ravine, valley or similar geographical feature (also in some places used of a sheltered area of coast between two cliffs and often applied in locality names).

(7) In aeronautics, the distance between one supporting surface of an airplane and another above or below it.

(8) In electronics, a break in a magnetic circuit that increases the inductance and saturation point of the circuit.

(9) In various field sports (baseball, cricket, the football codes etc), those spaces between players which afford some opportunity to the opposition.

(10) In genetics, an un-sequenced region in a sequence alignment.

(11) In slang (New Zealand), suddenly to depart.

(12) To make a gap, opening, or breach in.

(13) To come open or apart; form or show a gap.

1350–1400: From the Middle English gap & gappe (an opening in a wall or hedge; a break, a breach), from Old Norse gap (gap, empty space, chasm) akin to the Old Norse gapa (to open the mouth wide; to gape; to scream), from the Proto-Germanic gapōną, from the primitive Indo-European root ghieh (to open wide; to yawn, gape, be wide open) and related to the Middle Dutch & Dutch gapen, the German gaffen (to gape, stare), the Danish gab (an expanse, space, gap; open mouth, opening), the Swedish gap & gapa and the Old English ġeap (open space, expanse).  Synonyms for gap can include pause, interstice, break, interlude, lull but probably not lacuna (which is associated specifically with holes).  Gap is a noun & verb, gapped & gapping are verbs, Gapless & gappy are adjectives; the noun plural is gaps.

Lindsay Lohan demonstrates a startled gape, MTV Movie-Awards, Gibson Amphitheatre, Universal City, California, June 2010.

The use to describe natural geographical formations (“a break or opening between mountains” which later extended to “an unfilled space or interval, any hiatus or interruption”) emerged in the late fifteenth century and became prevalent in the US, used of deep breaks or passes in a long mountain chain (especially one through which a waterway flows) and often used in locality names.  The use as a transitive verb (to make gaps; to gap) evolved from the noun and became common in the early nineteenth century as the phrases became part of the jargon of mechanical engineering and metalworking (although in oral use the forms may long have existed).  The intransitive verb (to have gaps) is documented only since 1948.  The verb gape dates from the early thirteenth century and may be from the Old English ġeap (open space, expanse) but most etymologists seem to prefer a link with the Old Norse gapa (to open the mouth wide; to gape; to scream); it was long a favorite way of alluding to the expressions thought stereotypical of “idle curiosity, listlessness, or ignorant wonder of bumpkins and other rustics” and is synonymous with “slack-jawed yokels”).  The adjective gappy (full of gaps; inclined to be susceptible to gaps opening) dates from 1846.  The adjectival use gap-toothed (having teeth set wide apart) has been in use since at least the 1570s, but earlier, Geoffrey Chaucer (circa 1344-1400) had used “gat-toothed” for the same purpose, gat from the Middle English noun gat (opening, passage) from the Old Norse gat and cognate with gate.

Lindsay Lohan demonstrates her admirable thigh gap, November 2013.

The “thigh gap” seems first to have been documented in 2012 but gained critical mass on the internet in 2014 when it became of those short-lived social phenomenon which produced a minor moral panic.  “Thigh gap” described the empty space between the inner thighs of a women when standing upright with feet touching; a gap was said to be good and the lack of a gap bad.  Feminist criticism noted it was not an attribute enjoyed by a majority of mature human females and it thus constituted just another of the “beauty standards” imposed on women which were an unrealizable goal for the majority.  The pro-ana community ignored this critique and thinspiration (thinspo) bloggers quickly added annotated images and made the thigh gap and essential aspect of female physical attractiveness.  

A walking, talking credibility gap: crooked Hillary Clinton (b 1947; US secretary of state 2009-2013).

In English, gap has been prolific in the creation of phrases & expressions.  The “generation gap” sounds modern and as a phrase it came into wide use only in the 1960s in reaction to the twin constructs of “teenagers” and the “counter-culture” but the concept has been documented since antiquity and refers to a disconnect between youth and those older, based on different standards of behavior, dress, artistic taste and social mores.  The term “technology gap” was created in the early 1960s and was from economics, describing the various implications of a nation’s economy gaining a competitive advantage over others by the creation or adoption of certain technologies.  However, the concept was familiar to militaries which had long sought to quantify and rectify any specific disadvantage in personnel, planning or materiel they might suffer compared to their adversaries; these instances are described in terms like “missile gap”, “air gap”, “bomber gap”, “megaton gap” et al (and when used of materiel the general term “technology deficit” is also used).  Rearmament is the usual approach but there can also be “stop gap” solutions which are temporary (often called “quick & dirty” (Q&D)) fixes which address an immediate crisis without curing the structural problem.  For a permanent (something often illusory in military matters) remedy for a deficiency, one is said to “bridge the gap”, “gap-fill” or “close the gap”.  The phrase “stop gap” in the sense of “that which fills a hiatus, an expedient in an emergency” appears to date from the 1680s and may have been first a military term referring to a need urgently to “plug a gap” in a defensive line, “gap” used by armies in this sense since the 1540s.  The use as an adjective dates from the same time in the sense of “filling a gap or pause”.  A “credibility gap” is discrepancy between what’s presented as reality and a perception of what reality actually is; it’s applied especially to the statements of those in authority (politicians like crooked Hillary Clinton the classic but not the only examples).  “Pay gap” & “gender gap” are companion terms used most often in labor-market economics to describe the differences in aggregate or sectoral participation and income levels between a baseline group (usually white men) and others who appear disadvantaged.

“Gap theorists” (known also as “gap creationists”) are those who claim the account of the Earth and all who inhabit the place being created in six 24 hour days (as described in the Book of Genesis in the Bible’s Old Testament) literally is true but that there was a gap of time between the two distinct creations in the first and the second verses of Genesis.  What this allows is a rationalization of modern scientific observation and analysis of physical materials which have determined the age of the planet.  This hypothesis can also be used to illustrate the use of the phrase “credibility gap”.  In Australia, gap is often used to refer to the (increasingly large) shortfall between the amount health insurance funds will pay compared with what the health industry actually charges; the difference, paid by the consumer, (doctors still insist on calling them patients) is the gap (also called the “gap fee”).  In Australia, the term “the gap” has become embedded in the political lexicon to refer to the disparity in outcomes between the indigenous and non-indigenous communities in fields such as life expectancy, education, health, employment, incarceration rates etc.  By convention, it can be used only to refer to the metrics which show institutional disadvantage but not other measures where the differences are also striking (smoking rates, crime rates, prevalence of domestic violence, drug & alcohol abuse etc) and it’s thus inherently political.  Programmes have been designed and implemented with the object of “closing the gap”; the results have been mixed.

Opinion remains divided on the use of platinum-tipped spark plugs in the Mercedes-Benz M100 (6.3 & 6.9) V8.

A “spark gap” is the space between two conducting electrodes, filled usually with air (or in specialized applications some other gas) and designed to allow an electric spark to pass between the two.  One of the best known spark gaps is that in the spark (or sparking) plug which provides the point of ignition for the fuel-air mixture in internal combustion engines (ICE).  Advances in technology mean fewer today are familiar with the intricacies of spark plugs, once a familiar (and often an unwelcome) sight to many.  The gap in a spark plug is the distance between the center and ground electrode (at the tip) and the size of the gap is crucial in the efficient operation of an ICE.  The gap size, although the differences would be imperceptible to most, is not arbitrary and is determined by the interplay of the specifications of the engine and the ignition system including (1) the compression ratio (low compression units often need a larger gap to ensure a larger spark is generated), (2) the ignition system, high-energy systems usually working better with a larger gap, (3) the materials used in the plug’s construction (the most critical variable being their heat tolerance); because copper, platinum, and iridium are used variously, different gaps are specified to reflect the variations in thermal conductivity and the temperature range able to be endured and (4) application, high performance engines or those used in competition involving sustained high-speed operation often using larger gaps to ensure a stronger and larger spark.

Kennedy, Khrushchev and the missile gap

The “missile gap” was one of the most discussed threads in the campaign run by the Democratic Party’s John Kennedy (JFK, 1917–1963; US president 1961-1963) in the 1960 US presidential election in which his opponent was the Republican Richard Nixon (1913-1994; US president 1969-1974).  The idea there was a “missile gap” was based on a combination of Soviet misinformation, a precautionary attitude by military analysts in which the statistical technique of extrapolation was applied on the basis of a “worst case scenario” and blatant empire building by the US military, notably the air force (USAF), anxious not to surrender to the navy their pre-eminence in the hierarchy of nuclear weapons delivery systems.  It’s true there was at the time a missile gap but it was massively in favor of the US which possessed several dozen inter-continental ballistic missiles (ICBM) while the USSR had either four or six, depending on the definition used.  President Dwight Eisenhower (1890-1969; US president 1953-1961), a five-star general well acquainted with the intrigues of the military top brass, was always sceptical about the claims and had arranged the spy flights which confirmed the real count but was constrained from making the information public because of the need to conceal his source of intelligence.  Kennedy may actually have known his claim was incorrect but, finding it resonated with the electorate, continued to include it in his campaigning, knowing the plausibility was enhanced in a country where people were still shocked by the USSR having in 1957 launched Sputnik I, the first ever earth-orbiting satellite.  Sputnik had appeared to expose a vast gap between the scientific capabilities of the two countries, especially in the matter of big missiles. 

President Kennedy & comrade Khrushchev at their unproductive summit meeting, Vienna, June 1961.

Fake gaps in such matters were actually nothing new.  Some years earlier, before there were ICBMs so in any nuclear war the two sides would have to have used aircraft to drop bombs on each other (al la Hiroshima & Nagasaki in 1945), there’d been a political furore about the claim the US suffered a “bomber gap” and would thus be unable adequately to respond to any attack.  In truth, by a simple sleight of hand little different to that used by Nazi Germany to 1935 to convince worried British politicians that the Luftwaffe (the German air force) was already as strong as the Royal Air Force (RAF), Moscow had greatly inflated the numbers and stated capability of their strategic bombers, a perception concerned US politicians were anxious to believe.  The USAF would of course be the recipient of the funds needed to build the hundreds (the US would end up building thousands) of bombers needed to equip all those squadrons and their projections of Soviet strength were higher still.  If all of this building stuff to plug non-existent gaps had happened in isolation it would have been wasteful of money and natural resources which was bad enough but this hardware made up the building blocks of nuclear strategy; the Cold war was not an abstract exercise where on both sides technicians with clipboards walked from silo to silo counting warheads.

Instead, the variety of weapons, their different modes of delivery (from land, sea, undersea and air), their degrees of accuracy and their vulnerability to counter-measures was constantly calculated to assess their utility as (1) deterrents to an attack, (2) counter-offensive weapons to respond to an attack or (3) first-strike weapons with which to stage a pre-emptive or preventative attack.  In the Pentagon, the various high commands and the burgeoning world of the think tanks, this analysis was quite an industry and it had to also factor in the impossible: working out how the Kremlin would react.  In other words, what the planners needed to do was create a nuclear force which was strong enough to deter an attack yet not seem to be such a threat that it would encourage an attack and that only scratched the surface of the possibilities; each review (and there were many) would produce detailed study documents several inches thick.

US Navy low-level photograph spy of San Cristobal medium-range ballistic missile (MRBM) site #1, Cuba, 23 October, 1962.

In October 1962, during the Cuban Missile Crisis, the somewhat slimmer nuclear war manuals synthesized from those studies were being read with more interest than usual.  It was a tense situation and had Kennedy and comrade Nikita Khrushchev (1894–1971; Soviet leader 1953-1964) not agreed to a back-channel deal, the US would probably have attacked Cuba in some manner, not knowing three divisions of the Red Army were stationed there to protect the Soviet missiles and that would have been a state of armed conflict which could have turned into some sort of war.  As it was, under the deal, Khrushchev withdrew the missiles from Cuba in exchange for Kennedy’s commitment not to invade Cuba and withdraw 15 obsolescent nuclear missiles from Turkey, the stipulation being the Turkish component must be kept secret.  That secrecy colored for years the understanding of the Cuban Missile Crisis and the role of the US nuclear arsenal played in influencing the Kremlin.  The story was that the US stayed resolute, rattled the nuclear sabre and that was enough to force the Soviet withdrawal.  One not told the truth was Lyndon Johnson (LBJ, 1908–1973; US president 1963-1969) who became president after Kennedy was assassinated in 1963 and historians have attributed his attitude to negotiation during the Vietnam War to not wishing to be unfavorably compared to his predecessor who, as Dean Rusk (1909–1994; US secretary of state 1961-1969) put it, stood “eyeball to eyeball” with Khrushchev and “made him blink first”.  The existence of doomsday weapon of all those missiles would distort Soviet and US foreign policy for years to come.

Portico

Portico (pronounced pawr-ti-koh or pohr-ti-koh)

(1) In architecture, a covered (but not enclosed) entrance to a building, the structure consisting of a roof supported by columns or piers, usually attached to the building as a porch.

(2) The Stoic philosophy, named after the public porch on the agora of Athens where Zeno taught (now obscure and used only in the history or teaching of academic philosophy).

1595–1605: An Italian borrowing from the Latin porticus (gate; entrance), the construct being porta + -icus.  Porta is from the primitive Indo-European root per- (to pass through or over), probably as a feminine nominalization of pr-tó- (passed through; crossed) and related to the Ancient Greek πόρος (póros) (means of passage).  The –icus suffix is from the i-stem + -cus, occurring in some original cases and later used freely.  It was cognate with the Ancient Greek -ικός (-ikós), the Proto-Germanic –igaz, the Old High German and Old English -ig, the Gothic -𐌴𐌹𐌲𐍃 (-eigs) and the Proto-Slavic –ьcь.  The Slavic form fossilized into a nominal agent suffix, but probably originally also served adjectival functions.  The Latin porticus was a doublet of porche and both plural forms, porticoes & porticos, are acceptable.

Portico at front entrance of the Port Office building, Edward Street, Brisbane, Queensland, Australia. The architect was Francis Drummond Greville Stanley (1839—1897) who completed the design between 1875-1877 while appointed Queensland Government Architect.

First widely used as a formalised style in Ancient Greece, a portico is a porch which provides cover over the entrance to a building.  Until recently, historians of architecture insisted on a portico being a structure supported by columns or pillars but without walls, variations of the theme usually called colonnades or ante rooms.  Now, the more general term "porch" seems often extended to what used to be a portico.

Drayton Hall, Charleston, South Carolina.

Drayton Hall, a fine example of Palladian architecture, is thought to have been completed in the early 1750s.  On the west façade, it features an unusual, recessed, double projecting portico, one striking aspect of which is the twinned staircases.  Symmetrically paired staircases leading up to porticos were a common feature in antebellum architecture but it’s rare to see them attached at right angles, the style of the plantation era tending to favour sweeping curves.

Villa Cornaro, Venice.

Drayton Hall’s double-layer portico is said to be the first of its kind in North America and influenced by similar constructions in Italy by Renaissance architect Andrea Palladio (1508–1580) who lent his name to this style.  His Villa Cornaro, a country estate in Piombino Dese, near Venice, he designed in 1551-1552, leaving an interesting discussion of the building in the second volume of I quattro libri dell'architettura (The Four Books on Architecture (1570)).

Lindsay Lohan approaching the portico of the "London house" in Parent Trap (1998).   The house is 23 Egerton Terrace, Knightsbridge London, SW3 although in the film it's labelled Number 7.

Dump

Dump (pronounced duhmp)

(1) To drop something or let fall in a mass; fling down or drop heavily or suddenly.

(2) To empty the contents of something (by tilting, overturning etc).

(3) To dismiss, fire, or release from a contract.

(4) In informal (and very common) use, to end a relationship with someone (especially a romantic partner), used mostly when the action is one-sided although there are many mutual dumpings, even if some are technically retrospective.

(5) Suddenly to transfer or rid oneself of some responsibility, task or duty.

(6) In the slang of boxing (1) to knock down an opponent & (2) intentionally to lose a match.

(7) In commerce (1) to put (goods or securities) on the market in large quantities and at a low price without regard to the effect on market conditions or (2) deliberately to offer goods in large quantities or at prices below the cost of production & distribution in an attempt to drive out competition.

(8) In international trade, to sell (goods) into foreign markets below cost in order to promote exports or damage foreign competition.

(9) In computers, (1) to print, display or record on an output medium the contents of a computer's internal storage or the contents of a file, often at the time a program fails, later to be used to debug or determine the cause or point of failure or (2) as screen dump, to print or create an image file of the screen’s display.

(10) Of precipitation (rain, hail & (especially) snow), heavy downfalls.

(11) In historic use, a small coin made by punching a hole in a larger coin (called a holey dollar and issued in both Canada and Australia).

(12) A deep hole in a river bed; a pool (a northern England regionalism).

(13) In slang, to kill; to arrange or commit murder.

(14) To fall or drop down suddenly.

(15) To throw away, discard etc something.

(16) In informal use, to complain, criticize, gossip, or tell another person one's problems (often as “to dump on”); to treat with disrespect, especially to criticize harshly or attack with verbal abuse.

(17) In vulgar slang, an evacuation of the bowels; to defecate (often as “take a dump”; men especially fond of the phrase “huge dump”).

(18) An accumulation of discarded garbage, refuse etc; a tip or landfill site, also called a dumpsite or dumping-ground.

(19) In military use, a collection of ammunition, stores, etc, deposited at some point, as near a battlefront, for distribution (ammo dump, fuel dump etc).

(20) In mining, a runway or embankment equipped with tripping devices, from which low-grade ore, rock etc., are dumped; the pile of stuff, so dumped.

(21) In informal use, a place, house or town (even a state or entire country according to some) that is dilapidated, dirty, or disreputable.

(22) In merchandising, a bin or specially made carton in which items are displayed for sale.

(23) In surfing (of a wave) to hurl a swimmer or surfer down.

(24) To compact bales of wool by hydraulic pressure (Australian and New Zealand).

(25) A mournful song; a lament; a melancholy strain or tune in music; any tune (obsolete).

(26) A sad, gloomy state of the mind; sadness; melancholy; despondency (usually in the form “down in the dumps”).

(27) Absence of mind; reverie (now rare).

(28) Heavily to knock; to stump (Scottish, obsolete).

(29) A thick, ill-shapen piece (UK, archaic).

(30) A lead counter used in the game of chuck-farthing (UK, archaic).

(31) A type of dance (obsolete).

1300–1350: From the Middle English dompen & dumpen (to fall suddenly, plunge), from the Old Norse dumpa (to thump, strike, bump).  The modern senses of the transitive verb and noun are unknown prior to the nineteenth century and may either be from another source or are an independent expressive formation.  There may have been some Scandinavian influence such as the Norwegian dumpa (suddenly to fall) which may also be linked with other Germanic forms such as the Middle Low German dumpeln (to duck) and the Danish dumpe (suddenly to fall).  The use in the sense of “hole used for the disposal of unwanted items by burying” was a development of the Scots dump (hole in the ground), the Norwegian dump (a depression or hole in the ground), the German Low German dumpen (to submerge) and the Dutch dompen (to dip, sink, submerge), something obviously not unrelated to the early fourteenth century meaning “throw down or fall with force, drop (something or someone) suddenly” which didn’t exist in Old English.  The modern use is actually most modern, the sense “unload en masse, cause to fall out by tilting up a cart etc” not recorded until it emerged in American English by 1784 while that of “discard, abandon” dates from 1919.  The use in economics to describe “export or throw on the market in large quantities at low prices” was first noted in 1868 in the context of anti-competitive practices.  A dumping ground was first documented in 1842 although the term may earlier have been in oral use.  Dump & dumping are nouns & verbs, dumped is a verb, dumper & dumpage are nouns and dumpy is an adjective; the noun plural is dumps.

By 1865, the noun dump was understood as place “where refuse is dumped, piled or heaped; a repository of refuse matter” and applied originally to extractive mining as a development of the verb, the use extending to sites for discarding domestic rubbish by 1872, the earlier “dumping-ground” common by 1857.  The meaning “any shabby or dilapidated place” dates from 1899 while the use by the military to describe places for the “collection of ammunition, equipment etc, deposited at a convenient point for later distribution” was a product of World War I (1914-1918), noted first in 1915 and possibly a development from soldiers’ slang although the later war-time slang to mean “act of defecating” appears to be of civilian origin, noted first in the US in 1942.  The dump-truck was first so described in 1930s and although truck had for decades been used to dump stuff, the name was derived from the use of hydraulic rams to enable to load more quickly to be emptied by raising the load bed or freight compartment at an acute angle.

Lindsay Lohan and her lawyer in court, Los Angeles, 2011.

The “Dempster-Dumpster trash-hauling mechanism” remains familiar as the modern “dumpster”, a large, mobile container designed to be removed by a truck and taken away so the contented could be dumped in a dump, the container quickly reused.  It was patented by the Dempster brothers of Knoxville, Tennessee who ran an operation manufacturing waste collection vehicles (which would eventually include the Dempster Dumpmaster and Dempster Dinosaur).  The Dempster-Dumpster system achieved success by creating a system of mechanically emptying standardized metal containers which had been perfected between 1935-1937.  The concept of the dumpster (a standardized design able to be stored, re-used and transported efficiently) later influenced the development of container shipping.  The name dumpster became generic and was itself linguistically productive: “dumpster diving” (1979) described the practice of scavenging from dumpsters while “dumpster fire” was a figurative reference to a situation at once calamitous, foul and either insoluble or, if fixable, not worth the effort.  In use, a “dumpster fire” is similar to a “train wreck” or “shit show” but different from a “hot mess”, hot messes worth fixing because they remain in essence, desirable.  The use of “dumpster fire” spiked in the run-up to the 2016 US presidential election, used not only by both camps but also disillusioned neutrals.

The noun landfill dates from 1916 was a euphemism for dump although unlike some of the breed, it was at least literally true.  The adjective dumpy (short and stout) was from circa 1750 and the origin is undocumented but many etymologists assume it was linked to dumpling (mass of boiled paste (also “a wrapping in which something is boiled”)) which dates from circa 1600 and was from the Norfolk dialect, again of uncertain origin but the source may be Germanic or simply from “lump” (and there are those who argue dumplings were probably originally “lumplings”).  Lump was from the Middle English lumpe, from a Germanic base akin to the Proto-Germanic limpaną (to glide, go, loosely to hang).  “Humpty Dumpty” was a French nursery rhyme hero (it seems first to have been translated into English in 1810) and in the late eighteenth century it had been used to mean “a short, clumsy person of either sex”, presumably a reduplication of Humpty (a pet form of Humphrey (which was used of mandarin Sir Humphrey Appleby in the BBC Television comedy Yes Minister) although a humpty-dumpty in the 1690s was originally was a drink, a cocktail of “ale boiled with brandy” which probably tasted better than it sounds.  The construction was based presumably on hump and dump but the basis has eluded researchers.  In the late twentieth century, “hump & dump” was repurposed to describe the practice (habit, calling, tactic, whatever) of enticing a woman in order to enjoy sex and immediately afterwards leaving, never to ring or call.  It’s subsequently be claimed by bolshie women for much the same purpose; the variations included “fuck & chuck”, “pump & dump:, “jump and dump” and “smash and dash”.

Crooked Hillary dumping on deplorables, Georgia, 2016.

Big buses have long been used by politicians for their campaign tours.  They offer lots of advantages, being offices and communications centres with at least some of their running costs offset by a reduction in staff travel expenses.  Additionally, with five large, flat surfaces, they are a rolling billboard although that can be good or bad.  In 2016, one of crooked Hillary Clinton’s campaign buses was photographed in Lawrenceville, Georgia dumping a tank full of human waste onto the street and into a storm drain.  The local news service reported that when police attended the street was “…was covered in toilet paper and the odor was noxious”.  Hazmat crews were called to clean up the scene and the matter was referred to the environmental protection division of Georgia’s Department of Natural Resources.  The Democratic National Committee (DNC) later issued an apology, claiming the incident was “an honest mistake.”  Using the word “honest” in any statement related to crooked Hillary Clinton is always a bit of a gamble and there was no word on whether the dumping of human excrement had been delayed until the bus was somewhere it was thought many deplorables may be living.  If so, that may have been another “honest mistake” because Gwinett County (in which lies Lawrenceville) voted 51.02% Clinton/Kaine & 45.14% Trump/Pence although the symbolism may not have been lost on much of the rest of Georgia; state wide the Republican ticket prevailed 50.38% to 45.29%.

Dump has been quite productive.  A “dump-pipe” is part of the exhaust system in an internal combustion engine; a “brain dump” or “info dump” is the transfer of a large quantity of information or knowledge from one person (or institution) to another, although it’s also used in the slang of those working in the theoretical realm of the digitizing of human consciousness; a block dump was an image contains the sectors read from an original floppy diskette or optical disc; “dump months” are those periods during which film distributers & television programmers scheduled content either of poor-quality or of limited appeal; a “dump job” was either (1) the act of moving a corpse or some incriminating material from the scene of the crime to some un-related place, preferably remote & deserted or (2) the abandonment of an unfinished task for which the abandoner might be expected to take responsibility, especially in a fashion that makes it likely that one or more colleagues will take on its completion; the “mag dump” was military slang for the act of firing an entire magazine-full of ammunition from a fully-automatic weapon in a single burst; “dumpsville” could be either (1) the figurative location of a person who has been dumped by a lover or (2) a description of an undesirable town or other locality; to be “down in the dumps” is to be depressed, miserable and unhappy.

An electrically controlled exhaust system "cut-out", the modern version of the old, mechanical, "by-passes".  All dump-pipes work by offering exhaust gasses a "shortcut" to the atmosphere.

In internal combustion engines (ICE), there are both down-pipes and dump-pipes.  Their functions differ and the term down-pipe is a little misleading because some down-pipes (especially on static engines) actually are installed in a sideways or upwards direction but in automotive use, most do tend downwards.  A down-pipe connects the exhaust manifold to exhaust system components beyond, leading typically to first a catalytic converter and then a muffler (silencer), most factory installations designed deliberately to be restrictive in order to comply with modern regulations limiting emissions and noise.  After-market down-pipes tend to be larger in diameter and are made with fewer bends to improve exhaust gas flow, reduce back-pressure and (hopefully) increase horsepower and torque.   Such modifications are popular but not necessarily lawful.  Technically, a dump-pipe is a subset of the down-pipes and is most associated with engines using forced aspiration (turbo- & some forms of supercharging).  With forced-induction, exhaust gases exiting the manifold spin a turbine (turbocharger) or drive a compressor (supercharger) to force more of the fuel-air mixture into the combustion chambers, thereby increasing power.  What a dump-pipe does is provide a rapid, short-path exit for exhaust gases to be expelled directly into the atmosphere before reaching a down-pipe.  That makes for more power and noise, desirable attributes for the target market.  A dump pipe is thus an exit or gate from the exhaust system which can be opened manually, electronically, or with a “blow-off” valve which opens when pressure reaches a certain level.  In the happy (though more polluted) days when regulations were few, the same thing was achieved with an exhaust “by-pass” or “cut-out” which was a mechanical gate in the down-pipe and even then such things were almost always unlawful but it was a more tolerant time.  Such devices, lawful and otherwise, are still installed.

Grab from a Microsoft Windows system dump.  Although dumps contain much, of the thousands of lines one might contain, only a small string of text in one line might be relevant and users may need some assistance to interpret the result. 

In computing, a system dump is typically a commitment to a file of what exists in memory (random access memory (RAM) or on a paged volume) and they’re created usually at points of failure, creating essentially a snapshot of what was happening either at or immediately prior to the unfortunate event.  The contents of a system dump can be used to identify errors and debug programs.  A “stand-alone dump” program (a SAD or SADMP) produces a dump occupied by either (1) a system that failed or (2) a stand-alone dump program that failed.  Either the stand-alone dump program dumped itself (a self-dump) or the operator loaded another stand-alone dump program to dump the failed stand-alone dump program.  It’s less ominous than it sounds and together, the stand-alone dump program and the stand-alone dump together form what is known as the stand-alone dump service aid.  The significance of the element “stand-alone” is that the dump is performed separately from normal system operations and does not require a system to be in a condition for normal operation.  It means that except in cases of catastrophic failure (especially if involving the total loss of mains & UPS (uninterruptable power supply) power, it should be possible always to create a high-speed, unformatted dump of central storage and parts of paged-out virtual storage on a tape device or a direct access storage device (DASD).  The stand-alone dump supplies information which can be used to determine why the system or the stand-alone dump program failed.

Horology

Horology (pronounced haw-rol-uh-jee)

(1) The science of time.

(2) The art and science of making timepieces or measuring time.

(3) In Orthodox Christianity, the office-book of the Greek Church for the canonical hours.

1852: The construct was the Ancient Greek hōro (combining form of hṓra (hour; part of the day; any period of time)) + -logy.  The suffix -ology was formed from -o- (as an interconsonantal vowel) +‎ -logy.  The origin in English of the -logy suffix lies with loanwords from the Ancient Greek, usually via Latin and French, where the suffix (-λογία) is an integral part of the word loaned (eg astrology from astrologia) since the sixteenth century.  French picked up -logie from the Latin -logia, from the Ancient Greek -λογία (-logía).  Within Greek, the suffix is an -ία (-ía) abstract from λόγος (lógos) (account, explanation, narrative), and that a verbal noun from λέγω (légō) (I say, speak, converse, tell a story).  In English the suffix became extraordinarily productive, used notably to form names of sciences or disciplines of study, analogous to the names traditionally borrowed from the Latin (eg astrology from astrologia; geology from geologia) and by the late eighteenth century, the practice (despite the disapproval of the pedants) extended to terms with no connection to Greek or Latin such as those building on French or German bases (eg insectology (1766) after the French insectologie; terminology (1801) after the German Terminologie).  Within a few decades of the intrusion of modern languages, combinations emerged using English terms (eg undergroundology (1820); hatology (1837)).  In this evolution, the development may be though similar to the latter-day proliferation of “-isms” (fascism; feminism et al).  Descents of the Greek hōro came into use in many languages including the Hebrew הוֹרָה‏ (hóra), the Romanian horă and the Turkish while from the Modern Greek χορό (choró) (accusative of χορός (khorós) (dance)) came Hora, a circle dance popular in the Balkans and Israel. In Late Latin, the derived form was horologium.

Between the early sixteen and nineteenth centuries the meaning was restricted to describing clocks or their dials by at least 1820 reference books were noting “term horology is at present more particularly confined to the principles upon which the art of making clocks and watches is established”.  The earlier sense in English reflected the inheritance from the Latin horologium (instrument for telling the hour (and in Medieval Latin “a clock”), from the Ancient Greek hōrologion (instrument for telling the hour (ie the sundial; water-clock et al), from hōrologos (telling the hour).  Horological was used as early as 1590s, horologiography (the art or study of watches and timepieces) by the 1630s and the first horologists (the practitioners of horologiography) appeared to have emerged (or at least first advertised themselves) in 1795.  The noun horologe (a clock or sundial) is long obsolete.  Horology, horologiography & horologist are nouns, horological is an adjective and horologically is an adverb; the noun plural is horologists.

Greenwich Mean Time

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London.  It’s daily reset point is now midnight but, in the past, it has been set from different times including at noon and for this reason, if GMT is of substantive importance in some historic document, it’s sometimes necessary to determine which method of calculation applied at the time.  Because of Earth's uneven angular velocity in its elliptical orbit and its axial tilt, noon (12:00:00) GMT is rarely the exact moment the Sun crosses the Greenwich meridian and reaches its highest point in the sky.  The event may occur up to 16 minutes before or after noon GMT, a discrepancy included in the calculation of time: noon GMT is thus the annual average (ie "mean") moment of this event, which accounts for the "mean" in GMT.  In the English-speaking world, GMT is often used as a synonym for Coordinated Universal Time (UTC) and while this is close enough for many practical purposes, in the narrow technical sense GMT is now a time zone rather than time’s absolute reference.  For navigation, it is considered equivalent to UT1 (the modern form of mean solar time at 0° longitude); but this meaning can differ from UTC by up to 0.9 seconds so GMT should no longer be used for purposes demanding a high degree of precision.

Shepherd Gate (slave) Clock, Royal Observatory, Greenwich.

The Shepherd gate clock is installed at the gates of the Royal Observatory in Greenwich and was the first clock ever to display GMT to the public.  It is a “slave clock”, hardwired to the Shepherd “master clock” which was first commissioned at the observatory in 1852.  One obviously unusual aspect of the gate clock is that it has 24 hours on its face rather than the typical 12, thus at 12 noon the hour hand is points straight down rather than up.  In digital timepieces are common and the user often has the choice of a 12 or 24 hour format by in analogue devices they’re historically rare although Ford Australia did include one as a novelty in the first series of its locally produced LTD & Landau (1973-1976).  The clock remained a one-off.

Lindsay Lohan wearing Rolex Datejust Blue Diamond.  Ms Lohan has a number of Rolexes and some watch sites have noted her preferences for the larger, chunkier men's versions.  That larger face is certainly easier to read but some also prefer the more extravagant look.

Between 1852-1893, the Shepherd master clock was the baseline of the UK’s system of time, its time was sent over telegraph wires to London and many other cities including some in Ireland and from 1866, the signal was also relayed to a clock in Harvard University, Cambridge, Massachusetts, along the new transatlantic submarine cable.  One of history’s most significant clocks, it originally indicated astronomical time, in which the counting of the 24 hours of each day starts at noon though this was later changed to starts at midnight.  It continues to show GMT and is never adjusted for daylight saving time.

Janus

Janus (pronounced jey-nuhs)

(1) In Roman mythology, a god of doorways (and thus also of beginnings), and of the rising and setting of the sun, usually represented as having one head with two bearded faces back to back, looking in opposite directions, historically understood as the past and the future.

(2) When used attributively, to indicate things with two faces or aspects; or made of two different materials; or having a two-way action.

(3) In zoology, a diprosopus (two-headed) animal.

(4) In chemistry, used attributively to indicate an azo dye with a quaternary ammonium group, frequently with the diazo component being safranine.

(5) In astronomy, a moon of the planet Saturn, located just outside the rings.

(6) In figurative use, a “two-faced” person; a hypocrite.

(7) In numismatics, a coin minted with a head on each face.

(8) In architecture, as the jānus doorway, a style of doorway, archway or arcade, the name derived from the Roman deity Iānus being the god of doorways.

Mid-late 1500s: From the Latin Iānus (the ancient Italic deity Janus), to the Romans of Antiquity, the guardian god of portals, doors, and gates; patron of beginnings and endings.  The Latin Iānus (literally “gate, arched passageway”) may be from the primitive Indo-European root ei- (to go), the cognates including the Sanskrit yanah (path) and the Old Church Slavonic jado (to travel).  In depictions, Janus is shown as having two faces, one in front the other in back (an image thought to represent sunrise and sunset reflect his original role as a solar deity although it represents also coming and going in general, young and old or (in recent years) just about anything dichotomous).  The doors of the temple of Janus were traditionally open only during the time of war and closed to mark the end of the conflict, the origins of allusions to the “temple of Janus” being used metaphorically to mean conflict or wartime and the month of January is named after Janus, the link being to “the beginning of the year.  Janus is a noun or proper noun and Janian is an adjective.

A discarded proposal for the depiction of Lord Voldemort (left) in the Harry Potter films had him two-faced and Peter Dutton as imagined in the same vein (right).

One of the proposed models for the character of Lord Voldemort in JK Rowling's series of Harry Potter children's fantasy novels used as Janus-like two-faced head.  It's an urban myth Ms Rowling's inspiration for Lord Voldemort was Peter Dutton (b 1970; leader of His Majesty's loyal opposition in the Australian parliament since 2022) although, should his career in politics end soon (God forbid), he could find a new career in film, bringing Voldemort the evil and sense of menace the character has never quite achieved.  Mr Dutton has never denied being a Freemason.

An eighteenth century carving of Janus in the style of a herm.

A part of the etymological legacy of the Roman Empire, the name Janus appears in several European languages.  In Danish (from the Latin Iānus), it’s a Latinization of the Danish given name Jens.  In Faroese, it’s a male given name which begat (1) Janussson or Janusarson (son of Janus) and (2) Janusdóttir or Janusardóttir (daughter of Janus).  In Estonian it’s a male given name.  In Polish, it’s both a masculine & feminine surname (the feminine surname being indeclinable (a word that is not grammatically inflected).  There is no anglicized form of the Latin name Janus.  Although it was never common and is now regarded by most genealogy authorities as "rare", when used in the English-speaking world the spelling remain "Janus".  Often, when Latin names were adopted in English, even when the spelling was unaltered, there were modifications to suit local phonetics but Janus is pronounced still just as it would have been by a Roman.

Tristar pictures used the janus motif in the promotional material for I Know Who Killed Me (2007).

Dating from the 1580s, was from the Latin ianitor (doorkeeper, porter), from ianua (door, entrance, gate), the construct being ianus (arched passageway, arcade" + tor (the agent suffix).  The meaning “usher in a school” and later “doorkeeper” emerged in the 1620s white the more specific (and in Scotland and North America enduring) sense of “a caretaker of a building, man employed to attend to cleaning and tidiness” seems first to have been documented in 1708 (the now unused feminine forms were janitress (1806) & janitrix (1818).  Why janitor survived in general use in Scotland and North America and not elsewhere in the English-speaking world is a mystery although the influence of US popular culture (film and television) did see something of a late twentieth century revival and in  sub-cultures like 4chan and other places which grew out of the more anarchic bulletin boards of the 1980s & 1990s, a janitor is the (often disparaging) term for a content moderator for a discussion forum.

Augustus Orders the Closing of the Doors of the Temple of Janus (circa 1681), oil on canvas by Louis de Boullogne (1654–1733), Rhode Island School of Design Museum.

Among the more annoying things encountered by those learning English are surely Janus words, those with opposite meanings within themselves.  Examples include:

Hew can mean cutting something down or adhering closely to it.  Sanction may mean “formal approval or permission” or “an official ban, penalty, or deterrent”.  Scan can mean “to look slowly and carefully” or “quickly to glance; a cursory examination”.  Inflammable, which many take to mean “easy to burn” but the treachery of the word lies in the in- prefix which is often used as a negative, with the result that inflammable can be deconstructed as “not flammable”.  Trip can (and usually does) suggest clumsiness but can also imply some nimbleness or lightness of foot, as in the saying “trip the light fantastic”.  Oversight is a particularly egregious example.  To exercise oversight over someone or something is provide careful, watchful supervision yet an oversight is an omission or mistake.  In the ever-shifting newspeak of popular culture, the creation of the janus-word is often deliberate.  Filth can mean “of the finest quality”, wicked can mean “very good” and in the way which might have pleased George Orwell "bad" has become classic newspeak.   “Bad weed” can  mean the drug was either good or bad depending on the sentence structure: “that was bad weed” might well suggest it was of poor quality while “man, that was some bad weed” probably means it was good indeed.  Saying nice now seems rarely to mean what dictionaries say nice has come to mean but can variously describe something appalling or disgusting.